Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 18 of 18 for “"meta-models"”.
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Meta-models, environment and layers: agent-oriented engineering of complex systems
Traditional software engineering approaches and metaphors fall short when applied to areas of growing relevance such as electronic commerce, enterprise resource planning, and mobile computing: such areas, in fact, generally call for open architectures that may evolve dynamically over time so as to …
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Optimizing Groundwater Remediation Designs Using Dynamic Meta-Models and Genetic Algorithms
… a constrained reliability level. As in AMGA, the meta-models in Noisy-AMGA are online updated but they are trained to predict the expected outputs. The method was applied to two remediation case studies, where the primary source of uncertainty stems from hydraulic conductivity values in the …
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Query optimization for Federated Database Systems: the Cyrano prototype
… of Cyrano, a prototype deductive object-oriented meta model for Federated Database Systems (FDBSs). The hypothesis was that query optimization techniques such as Semi-Naive algorithm and Magic-Sets Rewrite algorithm could be used to improve the performance of Cyrano prototype query processing. …
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Interoperabilität heterogener Informationsquellen im Gesundheitswesen auf Grundlage von Standards für die medizinische Kommunikation und Dokumentation
… relates them to each other. The resulting models and meta models are meant as a guideline for structural analysis of candidate standards. The developed architecture and meta models are evaluated in a prototype implementation of the epidemiologic cancer registry of Lower Saxony.
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Prozessorientiertes Facility Management in verteilten Umgebungen
… gives thereby a promising basis. The concrete models with the contained types and their relations to each other are described over meta models. The usage of XML as means to data exchange between the individual components and for the description of the meta models guarantees a flexible and …
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Cyrano: a meta model for federated database systems
The emergence of new data models requires further research into federated database systems. A federated database system (FDBS) provides uniform access to multiple heterogeneous databases. Most FDBS's provide access to only the older data models such as relational, hierarchical, and network models. …
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Multiscale Modeling and Uncertainty Quantification of Multiphase Flow and Mass Transfer Processes
… analysis to simple or approximate computational models. This first objective is addressed through combining molecular and macroscale modeling where the molecular modeling is used to quantify the stochastic distribution of parameters that are typically approximated. Specifically, an adsorption …
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Método bi-fase para la conceptualización de ontologías basado en meta-modelos
… este trabajo se propone un método para elaborar meta-modelos conceptuales que definan declarativamente esquemas de conceptualización en el nivel de conocimientos. Además, se ha elaborado un lenguaje formal para formalizar los meta-modelos en el nivel simbólico llamado LBIR {Language for Building …
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Knowledge composition methodology for effective analysis problem formulation in simulation-based design
… based on analyst idealization decisions, and (3) meta-models for representing advanced simulation templates VTMB design models, analysis models, and the idealization relationships between them. Applications of the KCM to thermo-mechanical analysis of multi-stratum printed wiring boards and …
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Computational Augmentation of Model Based System Engineering: Supporting Mechatronic System Model Development with AI Technologies
… generic structural and functional concepts using meta-models. Modelling the system using descriptive models helps the designer to explicitly document dependencies between properties and parameters of system and external entities. The descriptive models thus produced often do not consider physics …
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Towards a robust life cycle assessment tool for sustainable pavement designs : quantifying context-specific impacts of pavement albedo
… designs, partially due to the limitations in sub-models for quantifying the use phase impacts, such as albedo. High-albedo surfaces reflect more shortwave radiation, exerting "radiative forcing" (RF) on the earth. It also affects the ambient temperature and results in changes in building energy …
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Accelerated optimisation methods for low-carbon building design
… of optimisation using Kriging surrogate models on low-carbon building design problems. Their performance is compared with established genetic algorithms operating without a surrogate on a range of different types of building-design problems. The advantages and disadvantages of a Kriging …
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Enhancing Information Systems with Event-Handling - A Non-Invasive Approach
… information system. For the first time, a meta-model that allows information system designers to tag an arbitrary data model and thus specify the event-handling semantics is presented. A formal specification of how to interpret meta-models to determine the receivers of the events completes …
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DEVELOPMENT OF FATIGUE MODELS FOR COPPER TRACES ON PRINTED WIRING ASSEMBLIES UNDER QUASI-STATIC CYCLIC MECHANICAL BENDING
… the parametric studies were captured in compact meta-models, using polynomial response surfaces. The durability data was collected from the experiment and used in conjunction with these models, to develop a set of compatible constitutive and fatigue model constants that best fit the behavior …
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A framework for designing and optimizing green infrastructure network under uncertainty
… of small GI practices using hydrologic models under uncertainty. Also, the benefits and costs of GI practices are not fully understood when the analysis scale changes from a household to a subwatershed to an entire watershed. Moreover, recognition of optimal locations in a watershed, …
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Agile methodologies and blockchain development
… needs to be supported by architectural models or blockchain oriented meta-models. The introduction of smart contracts, small computer programs stored inside the Ethereum blockchain, modifies the typical software engineering methodologies. The distributed applications developed on …
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Machine Learning from Computer Simulations with Applications in Rail Vehicle Dynamics and System Identification
… for learning the behavior of multibody dynamics models is investigated. The stochastic modeling technique is also known as Kriging or random function approach. Post-processing data from a simulation run is used to train the stochastic model that estimates the relationship between model inputs, …